土工格室柔性搭板处治桥头跳车影响因素分析

Analysis of the factors influencing geocell flexible approach slab for treating vehicle dumpping

运用有限元软件ABAQUS研究了加筋前后路堤顶部竖向位移和坡脚下地基的水平位移,分析了土工格室模量、填料参数、柔性搭板布置间距、布置层数和路堤高度等因素对路堤位移的影响。结果显示:土工格室柔性搭板体系能够有效减少路桥过渡段不均匀沉降,且当增大土工格室的弹性模量或增加布置层数时,将显著改善处治桥头跳车的效果。

By employing the finite element software ABAQUS, the vertical displacement at the top of the embankment and the horizontal displacement of the foundation under the foot of the embankment are studied. At the same time, effects of the geomorphic modulus, packing parameters, layout of the flexible slab, number of layers and height of the embankment on displacement are analyzed. The results show that the flexible slab system can effectively reduce the differential settlement in the roadbed-bridge transition section, and the treatment effect of the flexible slab system will be improved when the elastic modulus of the geocell is increased or the number of layers is increased.